Method and appliance for determining state of charge and/or capacity of battery with correction based on previously determined characteristic of residual charge as function of recovery voltage

摘要

A first module (10) integrates the load current with time to obtain the discharged ampere hours (QB). A second module (13) calculates the residual charge (QR) based on a previously determined characteristic of residual charge as a function of recovery voltage (UR). In a third module (12) the discharged ampere hour is corrected using the residual charge to obtain the true residual charge (QU)